Adaptation of the Foster‐Greer‐Thorbecke poverty measures for the measurement of catastrophic health expenditures
将FGT贫困测度方法改编为灾难性卫生支出（CHE）的测度工具，引入单一厌恶参数以强调超支幅度，并讨论子群分解性质及OLS回归估计方法。
In this paper we provide an adaptation of the Foster-Greer-Thorbecke (FGT) family of poverty measures for the measurement and analysis of catastrophic health expenditure (CHE). The adaptation entails introducing the FGT-type family of CHE measures with a single CHE aversion parameter whose value can be increased to put greater emphasis on the health expenditure proportions that overshoot the prescribed threshold proportions for CHE characterization by the greatest margins. The subgroup decomposition property of the FGT-type family of CHE measures (i.e., the ability to isolate the contributions of the various mutually exclusive population subgroups to the overall FGT-type CHE measure) is discussed along with other normative properties. We also show how the estimation and subgroup decomposition of the FGT-type family of CHE measures can be conveniently accomplished using ordinary least squares regression. An illustrative example is also provided to show how the FGT approach can provide valuable insights into the distribution of CHE among the healthcare spending units that incur CHE.